Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through May 2013.
Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.
| 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.65" | 32.11" | 36.64" | 30.84" | 42.35" | 28.48" | 32.77" | 39.94" | 31.52" | 40.63" | 37.75" | 33.35" | 43.19" | 29.34" | 29.99" | 29.98" | 35.52" | 34.17" | 37.53" | 41.17" | 31.00" | 26.48" | 23.65" | 44.46" | 41.52" | 36.83" | 34.33" | 39.36" | 35.27" | 25.54" | 37.73" | 40.18" | 34.30" | 35.83" | 31.68" | 33.21" | 41.11" | 34.32" | 28.26" | 39.01" | 30.59" | 31.06" | 36.71" | 30.12" | 33.03" | 43.97" | 40.14" | 30.20" | 38.08" | 42.52" | 37.74" | 34.87" | 33.62" | 40.05" | 40.86" | 31.02" | 27.28" | 31.22" | 25.77" | 32.75" | 22.30" | 41.46" | 43.66" | 32.73" | 35.64" | 41.55" | 34.59" | 25.99" | 31.83" | 33.76" | 33.30" | 30.47" | 38.20" | 35.16" | 34.26" | 31.92" | 34.37" | 47.00" | 40.72" | 41.12" | 31.63" | 34.56" | 31.80" | 41.36" | 33.13" | 33.02" | 34.37" | 38.66" | 32.41" | 41.55" | 36.22" | 42.45" | 32.29" | 38.50" | 37.02" | 41.99" | 43.01" | 39.27" | 34.34" | 40.74" | 32.63" | 40.17" | 36.07" | 37.91" | 27.09" | 40.81" | 35.75" | 38.30" | 38.94" | 38.87" | 27.46" | 44.12" | 36.95" | 35.21" | 40.78" | 22.60" | 35.83" |
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